<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">ESPECTROMETRIA DE MASAS</topic></authority><related type="narrower"><topic>ESPECTROMETRIA DE MASAS DE DESORCION DE CAMPOS</topic></related><related type="narrower"><topic>ESPECTROMETRIA DE MASAS SECUNDARIAS DE IONES</topic></related><related type="narrower"><topic>ESPECTROS MOLECULARES</topic></related><related type="narrower"><topic>IONIZACION QUIMICA POR ESPECTROMETRIA DE MASAS</topic></related><related type="broader"><topic>ANALISIS ESPECTRAL</topic></related><related type="broader"><topic>ESPECTROMETROS</topic></related><related type="broader"><topic>ESPECTROSCOPIA NUCLEAR</topic></related><variant type="other"><topic>Espectrógrafo de masas</topic></variant><variant type="other"><topic>Espectroscopía de masas</topic></variant><variant type="other"><topic>Masa espectral</topic></variant><variant type="other"><topic>Análisis de masa espectral</topic></variant><variant type="other"><topic>Espectro de masas</topic></variant></mads>